made the pack completely portable and wrote relevent bat files to go with it

gitportable/usr/share/vim/vim91/syntax/sendpr.vim

@@ -0,0 +1,37 @@
+" Vim syntax file
+" Language: FreeBSD send-pr file
+" Maintainer: Hendrik Scholz <hendrik@scholz.net>
+" Last Change: 2022 Jun 14
+"
+" http://raisdorf.net/files/misc/send-pr.vim
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+syn match sendprComment /^SEND-PR:/
+" email address
+syn match sendprType /<[a-zA-Z0-9\-\_\.]*@[a-zA-Z0-9\-\_\.]*>/
+" ^> lines
+syn match sendprString /^>[a-zA-Z\-]*:/
+syn region sendprLabel start="\[" end="\]"
+syn match sendprString /^To:/
+syn match sendprString /^From:/
+syn match sendprString /^Reply-To:/
+syn match sendprString /^Cc:/
+syn match sendprString /^X-send-pr-version:/
+syn match sendprString /^X-GNATS-Notify:/
+
+hi def link sendprComment   Comment
+hi def link sendprType      Type
+hi def link sendprString    String
+hi def link sendprLabel     Label
+
+let b:current_syntax = 'sendpr'
+
+let &cpo = s:cpo_save
+unlet s:cpo_save